Yeah, I think the Valkyrie is a nice round, but there have been some issues with various versions of the chamber reamer & there's been a lot of hit & miss, accuracy wise.
Some have it figured out now, some not so much................I don't know where Wyndham falls in that spectrum, but their kit price is very attractive.
Like I said, I really don't need to start up with another new cartridge................but it's a pretty impressive performing round.
Here's a few comments & reports from Frank (Lowlight), who runs Sniper's Hide, recently.